Enter one of the following combos: (s and n),(r and n),(a and n),(a and s and n)

You entered pentagon which corresponds to the 5 sided polygon so n = 5

__Calculate Sum of the Interior Angles:__

Interior Angle Sum = (n - 2) x 180°

Interior Angle Sum = (5 - 2) x 180°

Interior Angle Sum = (3) x 180°

Interior Angle sum =**540°**

__Calculate the number of diagonals of the polygon:__

Diagonals =**5**

__Calculate the number of diagonals from one vertex:__

1 vertex Diagonals = n - 3

1 vertex Diagonals = 5 - 3

1 vertex Diagonals =**2**

__Calculate the number of triangles that can be drawn from one vertex:__

Triangles = N - 2

Triangles = 5 - 2

Triangles =**3**

__Construct the formal name of this polygon:__

Since the polygon has 5 sides, it is a pentagon

You entered pentagon which corresponds to the 5 sided polygon so n = 5

Interior Angle Sum = (n - 2) x 180°

Interior Angle Sum = (5 - 2) x 180°

Interior Angle Sum = (3) x 180°

Interior Angle sum =

Diagonals = | n(n - 3) |

2 |

Diagonals = | 5(5 - 3) |

2 |

Diagonals = | 5(2) |

2 |

Diagonals = | 10 |

2 |

Diagonals =

1 vertex Diagonals = n - 3

1 vertex Diagonals = 5 - 3

1 vertex Diagonals =

Triangles = N - 2

Triangles = 5 - 2

Triangles =

Since the polygon has 5 sides, it is a pentagon